Lub teb chaws cov cuab yeej tsis muaj dej tsis zoo thiab cov plua plav pov tseg tau muab faib ua qib, thiab qib dej tsis zoo thiab plua plav pov thawj ntawm cov dej tsis muaj dej thiab nqus tau siab dua, uas tuaj yeem ncav cuag IP68. Qhov no twb yog qib siab heev, thiab nws tsis qis dua. , qhov qis tshaj kuj yog IP65, yog li cov dej tsis zoo thiab cov khoom sib khi ntawm cov dej tsis zoo thiab ua pa tawm tau zoo heev.
Tsis tas li ntawd, qee cov khoom siv yuav siv cov roj teeb rau lub sijhawm ntev, thiab peb txhua tus paub tias cov roj teeb yuav tsim cov pa phem ntau tom qab siv tau ntev. Cov pa roj carbon monoxide uas sib sau ua ke hauv qhov chaw mus ntev yuav tsis tsuas yog ua rau cov khoom puas tsuaj rau cov khoom siv, tab sis kuj ua rau muaj kev kub ntxhov ntau heev vim muaj kev sib txuam ntau dhau. Qhov tshwm sim no ncaj qha tiv thaiv lub tshuab ua haujlwm. Cov ntsaws ruaj ruaj thiab breathable muaj cua permeability zoo, yog li nws muaj peev xwm tswj tau ruaj khov nyob rau hauv thiab sab nraud gas exchange, kom ntseeg tau tias ib txwm siab thiab tawm ntawm cov pa phem.
Cov dej tsis muaj dej thiab ua pa tawm ntawm cov khoom siv dej tsis zoo thiab cov pa ua pa tawm muaj cov qauv ntxeem tau zoo, thiab qee qhov muaj cov lim dej kom tsis txhob muaj plua plav nkag mus rau sab hauv. Sab nraud ntawm cov dej tsis muaj dej thiab ua tsis taus pa yog feem ntau threaded plhaub, uas yooj yim heev rau cov neeg siv los nruab, kho thiab disassemble. , kuj tseem muaj cov txheej txheem tiv thaiv kev laus rau ntawm qhov chaw uas tuaj yeem tiv thaiv cov hluav taws xob ultraviolet, yog li kev pabcuam lub neej ntawm cov dej tsis zoo thiab nqus pa feem ntau yog ntev heev.